From 104a242b9740487c3b59f5e3337d6a1719455320 Mon Sep 17 00:00:00 2001
From: Sean Harvey <sean@silverstripe.com>
Date: Thu, 13 May 2010 12:25:54 +0000
Subject: [PATCH] ENHANCEMENT Added
 MSSQLDatabaseConfigurationHelper::requireDatabaseVersion() to check for SQL
 Server 2008 SP1 as a minimum requirement

---
 code/MSSQLDatabaseConfigurationHelper.php | 48 ++++++++++++++++++++++-
 1 file changed, 46 insertions(+), 2 deletions(-)

diff --git a/code/MSSQLDatabaseConfigurationHelper.php b/code/MSSQLDatabaseConfigurationHelper.php
index 8d53efc..40e28f0 100644
--- a/code/MSSQLDatabaseConfigurationHelper.php
+++ b/code/MSSQLDatabaseConfigurationHelper.php
@@ -67,7 +67,7 @@ class MSSQLDatabaseConfigurationHelper implements DatabaseConfigurationHelper {
 	public function requireDatabaseConnection($databaseConfig) {
 		$success = false;
 		$error = '';
-		
+
 		if(function_exists('mssql_connect')) {
 			$conn = @mssql_connect($databaseConfig['server'], $databaseConfig['username'], $databaseConfig['password'], true);
 		} else {
@@ -98,6 +98,50 @@ class MSSQLDatabaseConfigurationHelper implements DatabaseConfigurationHelper {
 		);
 	}
 
+	/**
+	 * Ensure that the SQL Server version is at least 10.00.1600 (SQL Server 2008 RTM).
+	 * @see http://www.sqlteam.com/article/sql-server-versions
+	 * @param array $databaseConfig Associative array of db configuration, e.g. "server", "username" etc
+	 * @return array Result - e.g. array('success' => true, 'error' => 'details of error')
+	 */
+	public function requireDatabaseVersion($databaseConfig) {
+		$success = false;
+		$error = '';
+		$version = 0;
+
+		// Get the version using SERVERPROPERTY() function
+		if(function_exists('mssql_connect')) {
+			$conn = @mssql_connect($databaseConfig['server'], $databaseConfig['username'], $databaseConfig['password'], true);
+			$result = @mssql_query("SELECT SERVERPROPERTY('ProductVersion')", $conn);
+			$row = @mssql_fetch_array($result);
+		} else {
+			$conn = @sqlsrv_connect($databaseConfig['server'], array(
+				'UID' => $databaseConfig['username'],
+				'PWD' => $databaseConfig['password']
+			));
+			$result = @sqlsrv_query($conn, "SELECT SERVERPROPERTY('ProductVersion')");
+			$row = @sqlsrv_fetch_array($result);
+		}
+
+		if($row && isset($row[0])) {
+			$version = $row[0];
+		}
+
+		if($version) {
+			$success = version_compare($version, '10.00.1600', '>=');
+			if(!$success) {
+				$error = "Your SQL Server version is $version. It's recommended you use at least 10.00.2531 (SQL Server 2008 SP1).";
+			}
+		} else {
+			$error = "Your SQL Server version could not be determined.";
+		}
+
+		return array(
+			'success' => $success,
+			'error' => $error
+		);
+	}
+
 	/**
 	 * Ensure that the database connection is able to use an existing database,
 	 * or be able to create one if it doesn't exist.
@@ -139,4 +183,4 @@ class MSSQLDatabaseConfigurationHelper implements DatabaseConfigurationHelper {
 		);
 	}
 
-}
+}
\ No newline at end of file